include/net/irda/ircomm_core.h

   1 /*********************************************************************
   2  *
   3  * Filename:      ircomm_core.h
   4  * Version:
   5  * Description:
   6  * Status:        Experimental.
   7  * Author:        Dag Brattli <dagb@cs.uit.no>
   8  * Created at:    Wed Jun  9 08:58:43 1999
   9  * Modified at:   Mon Dec 13 11:52:29 1999
  10  * Modified by:   Dag Brattli <dagb@cs.uit.no>
  11  *
  12  *     Copyright (c) 1999 Dag Brattli, All Rights Reserved.
  13  *
  14  *     This program is free software; you can redistribute it and/or
  15  *     modify it under the terms of the GNU General Public License as
  16  *     published by the Free Software Foundation; either version 2 of
  17  *     the License, or (at your option) any later version.
  18  *
  19  *     This program is distributed in the hope that it will be useful,
  20  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  22  *     GNU General Public License for more details.
  23  *
  24  *     You should have received a copy of the GNU General Public License
  25  *     along with this program; if not, see <http://www.gnu.org/licenses/>.
  26  *
  27  ********************************************************************/
  28
  29 #ifndef IRCOMM_CORE_H
  30 #define IRCOMM_CORE_H
  31
  32 #include <net/irda/irda.h>
  33 #include <net/irda/irqueue.h>
  34 #include <net/irda/ircomm_event.h>
  35
  36 #define IRCOMM_MAGIC 0x98347298
  37 #define IRCOMM_HEADER_SIZE 1
  38
  39 struct ircomm_cb;   /* Forward decl. */
  40
  41 /*
  42  * A small call-table, so we don't have to check the service-type whenever
  43  * we want to do something
  44  */
  45 typedef struct {
  46         int (*data_request)(struct ircomm_cb *, struct sk_buff *, int clen);
  47         int (*connect_request)(struct ircomm_cb *, struct sk_buff *,
  48                                struct ircomm_info *);
  49         int (*connect_response)(struct ircomm_cb *, struct sk_buff *);
  50         int (*disconnect_request)(struct ircomm_cb *, struct sk_buff *,
  51                                   struct ircomm_info *);
  52 } call_t;
  53
  54 struct ircomm_cb {
  55         irda_queue_t queue;
  56         magic_t magic;
  57
  58         notify_t notify;
  59         call_t   issue;
  60
  61         int state;
  62         int line;            /* Which TTY line we are using */
  63
  64         struct tsap_cb *tsap;
  65         struct lsap_cb *lsap;
  66
  67         __u8 dlsap_sel;      /* Destination LSAP/TSAP selector */
  68         __u8 slsap_sel;      /* Source LSAP/TSAP selector */
  69
  70         __u32 saddr;         /* Source device address (link we are using) */
  71         __u32 daddr;         /* Destination device address */
  72
  73         int max_header_size; /* Header space we must reserve for each frame */
  74         int max_data_size;   /* The amount of data we can fill in each frame */
  75
  76         LOCAL_FLOW flow_status; /* Used by ircomm_lmp */
  77         int pkt_count;          /* Number of frames we have sent to IrLAP */
  78
  79         __u8 service_type;
  80 };
  81
  82 extern hashbin_t *ircomm;
  83
  84 struct ircomm_cb *ircomm_open(notify_t *notify, __u8 service_type, int line);
  85 int ircomm_close(struct ircomm_cb *self);
  86
  87 int ircomm_data_request(struct ircomm_cb *self, struct sk_buff *skb);
  88 void ircomm_data_indication(struct ircomm_cb *self, struct sk_buff *skb);
  89 void ircomm_process_data(struct ircomm_cb *self, struct sk_buff *skb);
  90 int ircomm_control_request(struct ircomm_cb *self, struct sk_buff *skb);
  91 int ircomm_connect_request(struct ircomm_cb *self, __u8 dlsap_sel,
  92                            __u32 saddr, __u32 daddr, struct sk_buff *skb,
  93                            __u8 service_type);
  94 void ircomm_connect_indication(struct ircomm_cb *self, struct sk_buff *skb,
  95                                struct ircomm_info *info);
  96 void ircomm_connect_confirm(struct ircomm_cb *self, struct sk_buff *skb,
  97                             struct ircomm_info *info);
  98 int ircomm_connect_response(struct ircomm_cb *self, struct sk_buff *userdata);
  99 int ircomm_disconnect_request(struct ircomm_cb *self, struct sk_buff *userdata);
 100 void ircomm_disconnect_indication(struct ircomm_cb *self, struct sk_buff *skb,
 101                                   struct ircomm_info *info);
 102 void ircomm_flow_request(struct ircomm_cb *self, LOCAL_FLOW flow);
 103
 104 #define ircomm_is_connected(self) (self->state == IRCOMM_CONN)
 105
 106 #endif